Multiple Sizes: The kit includes 30 pcs of 3/16" x 1-1/4", 30 pcs of 3/16" x 1-3/4", 15 pcs of 3/16" x 2-1/4", 15 pcs of 3/16" x 3-1/4", and 10 pcs of 3/16" x 3-3/4". A total of 100 concrete screws, assorted and ready for versatile fastening jobs

High Strength and Rust-proof: Made of heat-treated hardened carbon steel with a blue rust-proof coating, these masonry screws withstand outdoor elements like rain and wind without losing grip or strength

Reliable Performance: Diamond tip drills in fast with no pre-drilling needed in many cases. Our brick screws feature high-low threads and serrated edges for stronger grip and faster penetration into hard concrete, saving time and effort